Spiral Roller Bearing

Radial spiral roller bearings are designed to carry only radial loads, without fxing the shaft in the axial direction. They can accommodate impact loads and are not very sensitive to contamination. Their load rating is twice less than that of bearings with cylindrical rollers. They can operate at low rotational speed.

Spiral Roller Bearing

Bearings with spiral rollers are manufactured with outer,  inner rings and cage with a set of rollers of 5000, 3005000, 15000, 3015000 types. Bearings of 5000, 3005000 types are manufactured with extended inner ring, with a slot for fxing the bearing on  the shaft, which makes bearing mounting (dismounting) easier and also prevents inner ring turning on the shaft. Rollers are produced by winding on a belt with rectangular cross section.

Adjacent rollers have usually the opposite winding for better  lubricant distribution and  to avoid axial displacement. The cage usually consists of two washers with pins which simultaneously serve as rollers axes.

Bearings of 5000, 3005000, 15000, 3015000 types can be supplied either completed or without inner ring (35000 type), or without  inner and outer rings (65000 type). Designation of 35000 and 65000 types is specifed by manufacturer.